The Showboat Atlantic City Photograph Collection (1986) contains black-and-white and color photographic prints and conceptual sketches of the Showboat Casino in Atlantic City, New Jersey. The photographs depict casino patrons in various locations throughout the Showboat, and the sketches show exterior and interior designs.

The Clark County Planning Commission Research Library Collection (1911-2004) consists of reports, publications, and proposals gathered by the Clark County Planning Commission that focus on the environmental impact of proposed developments, construction, or infrastructure improvements around the county. The collection contains materials related to various local, state, federal, and inter-agency workshops, committees, and agencies. Documents include activity reports, impact statements, annual budgets and reports, and detailed studies. The majority of the collection dates from 1970 to 1999.

The John C. Olsen Photograph Collection (approximately 1950 to 1969) consists of black-and-white photographic prints, negatives, and one scrapbook. Images depict scenes from the annual Helldorado Celebration in Las Vegas, Nevada, the Shriners’ Parade in downtown Las Vegas, various hotels along the Las Vegas Strip, the Last Frontier Village at the Last Frontier Hotel, Las Vegas, natural landscapes at Mount Charleston and Rhyolite, Nevada, Hoover Dam and Lake Mead, Twin Lakes, and petroglyphs in Valley of Fire Nevada State Park.

The Women of Diversity Productions, Inc. Records (approximately 1920-2018) contain the records of Las Vegas, Nevada based organization, Women of Diversity Productions, Inc (WOD). The collection is comprised of operational records and research primarily created by WOD's founder, Dr. Marlene Adrian. The records represent the organization's work in publishing, creating documentaries, and organizing events highlighting the history and achievements of women in Nevada's history. Records include event files, Board of Director meeting agendas and minutes, grant applications, and research files for WOD's activities including projects for the Las Vegas Centennial and Nevada Sesquicentennial events. The materials also include research and final reports for the 2017 and 2018 Gaming Gender Equality Index which was co-authored by Adrian and Denise R. Duarte.

The North Las Vegas Bicentennial Committee Photographs and Drawings of Kiel Ranch document the buildings on Kiel (Kyle) Ranch in 1974. As part of the commemoration of the United States bicentennial, the North Las Vegas City Council elected to restore Kiel Ranch, which was one of the first non-indigenous settlements in the Las Vegas Valley. The materials include black-and-white photographs of Kiel Ranch as it was in 1974 as well as architectural drawings of planned renovations to the main house, the Brown House, the foreman's house, and the ranch hands' house.